Helena Valley Regulating Reservoir Weather Forecast

    • 25
    • 51

    Rain Showers Likely

    • 23
    • 41

    Mostly Cloudy

    • 27
    • 44

    Chance Snow

    • 33
    • 49

    Rain/Snow Likely

    • 25
    • 48

    Rain/Snow Likely

    • 22
    • 41

    Chance Snow

    • 25
    • 45

    Partly Sunny

Today 13 Mar Helena Valley

Mostly cloudy with a 50 percent chance of rain. Near steady temperature in the upper 40s. West Winds 10 to 20 Mph with Gusts to around 35 Mph.

Tonight 13 Mar Helena Valley

Colder. Mostly cloudy. A 20 percent chance of rain and snow in the evening. Lows in the mid 20s. West Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Helena Valley Regulating Reservoir Temperature Statistics

March Temperature

Helena Regional Airport (5.6 miles)

  • Lowest 7 March, 2025

    21.8 °F

  • Average March

    40.5 °F

  • Highest 9 March, 2025

    62.1 °F

Climate (2020–Present)

Helena Regional Airport (5.6 miles)

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  • Average Low 2020–2025

    35.9 °F

  • Average 2020–2025

    47.2 °F

  • Average High 2020–2025

    59 °F
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